Charles h



C. H.' RAYMOND. BEADING MAGEINE EOE SHEET ELIE'TM..l u

Patented Een. l15, 1870.

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CHARLES H. RAYMOND, 0F SOUTHINGTON, CONNECTICUT.4

Letters Patent N 99,788, dated February 15, 1870.

The Schedule referred to in these Letters Patent and making part of tbei'sma.

To 'all 'whom it may concern:

Y Beit known that I, CHARLES H. RAYMOND, of Southiugton, in the 'county of Hartford, and State of Gonngarticunhare invented and made a new and useful ImprovementfueadingMachines for Sheet Metal; and that the following is a.` correct description thereof.

`This machine is to bend sheet metal, and form beads or mouldiugs o n the same.

I employ rollers at the ends o f shafts, supported by hollow cast-metal arms, the edge of the sheet metal running iu between said arms, where an adjustable gauge is provided.

In the drawing- Figure l is a longitudinal vertical section of said bending-machine Figure 2 is a cross-section, at the line a: z; and

Figure 3 is a rear view, endwise of the shafts.-

The flame-work of my machine is made of cast metal, with hollow arms, a and b, extending out froml the box c, that contains the gears; and d is a pintle to setinto a socket on the bench, and support the entire machine.

The lower shaft c passes ear one end, vthrough a. hearing, 2, in the end ofthe rm a, then through the gear f, and tapering bearing 3, the latter heilig cast with the gear-box' c;

The set-nuts 4 4, upon the shaft c, retain the shaft,

and allow of au eudwise adjustment, incase of the shnltweariug loose in the bearing. .lhey donot, howerer, interfere with the free rotation of the shaft.

, The cn'mk-handle g is applied to the end of this shaft c, to rotate the same, and motion isv communicated to the shaft h by the. gears f and k.

This shaft h passes through the upper arm b; and at the outer -end of said arm b is a sliding box, i, acted upon by the adjusting-screw l, so as to press the roller m i: to the. desired proximity to the roller n, and, when relieved, the rollers are separated by the spring p, that acts upon alifting-ring, S, through which the shaft h Passes i i At the back end the shaft h is made tapering, and passes through the box o, and is held, but allowed to rotate freely, by the set-nuts q.

The box o has gudgeons ortrunnious passing into the yoke lr, and ths latter is held by the nut and screw s, passing through a slot in the upper part of c. 'lbese devices allow the shaft h to be adjustcd longitudinally, and, at the same time, the roller m to be raised or pressed down. The endwise adjustment causes-the beads on the roller m* to come properly over the grooves in the roller n;

These rollers mV andn are to be made of steel or malleable iron, case-hardened. Heretotbre, the rollers, in machines of this kind have been solid, and were liable to break in' hardening, in consequence of inequality of thickness, or else were unnecessarily heavy and cost-ly.

'lo obviate these diticulties, I make the said rollers of nearly uniform thickness, by forming the roller hollow, as represented. Theroller can be more quickly rendered malleable than solid east-iron rollers, and the met-al is more uniform, and less liable to break, eith'er in use or while being hardened.

.lhe arm a is formed as a. V-slide, for receiving the gauge w, that is movable between thearx'ns a and b, to regulate the-distance at which the bead is bent from the edge of the sheet metal. 'The clamping-screw 10 holds this gauge, undone side of said gauge is rounding, as vseen in the detached view, Figure 4, and the other side is straight, so as to accommothtte dilerent articles of sheet metal. lhis gauge may be slipped ot the \'slide, audturued around, so as to present;` either the straight or curvededge to the sheet metal. The bending-machine, made as aforesaid, is much more easily adjusted than than the machines heretofore made, and is stronger and less liable to become obstructed in its operatiom-or injured when-in use.I

'.lhe boxo aud adjustable yoke r, set-nuts q' andtaperiug shaft h, are not herein claimed, lthe same he-` ing found iu Letters Patent. granted to me March 30,

I claim as my invention- 1. The hollow arms aand b, and gear-box c, cast together, in conilnationwith the shafts e and h, bearing 2, 3, i, and o, gears f L', and rollers m u, substantially as and for the purposes set forth.-

2. 'lhe V-shaped slide upon the arm a, in combinar tion with the gauge 'w and rollers m n, as and for the purposes set forth. 1 v e 3. The gauge w, formed with one side' straight, and

' the other convex, in combination with thel rollers m n and arms@ b, between which armssaid gauge is clamped, as set forth. x

' Signed this 21st day of October, A. D. 18.69.

C. H. RAYMON D.

Witnesses:

SYLvesTnn E. Museen, HENRY S. Hu'rcumson. 

